Match the systems, labelled a. through c. with their characteristics. (Options may be used more than once or not at all.)
-secretes chemical messengers that affect target cells
A)the endocrine system
B)the nervous system
C)both the endocrine and nervous systems

Question

Quizplus · Accepted Answer

Both the endocrine and nervous systems secrete chemical messengers. The endocrine system does so through hormones released into the bloodstream, affecting distant target cells, while the nervous system uses neurotransmitters to affect target cells at synapses.

Match the Systems, Labelled A